Calculus Examples

$y = 2 \sin (3 x^{3} + 5 x^{2} - 5)$

Step 1

Since $2$ is constant with respect to $x$ , the derivative of $2 \sin (3 x^{3} + 5 x^{2} - 5)$ with respect to $x$ is $2 \frac{d}{d x} [\sin (3 x^{3} + 5 x^{2} - 5)]$ .

$2 \frac{d}{d x} [\sin (3 x^{3} + 5 x^{2} - 5)]$

Step 2

Differentiate using the chain rule, which states that $\frac{d}{d x} [f (g (x))]$ is $f' (g (x)) g' (x)$ where $f (x) = \sin (x)$ and $g (x) = 3 x^{3} + 5 x^{2} - 5$ .

Tap for more steps...

Step 2.1

To apply the Chain Rule, set $u$ as $3 x^{3} + 5 x^{2} - 5$ .

$2 (\frac{d}{d u} [\sin (u)] \frac{d}{d x} [3 x^{3} + 5 x^{2} - 5])$

Step 2.2

The derivative of $\sin (u)$ with respect to $u$ is $\cos (u)$ .

$2 (\cos (u) \frac{d}{d x} [3 x^{3} + 5 x^{2} - 5])$

Step 2.3

Replace all occurrences of $u$ with $3 x^{3} + 5 x^{2} - 5$ .

$2 (\cos (3 x^{3} + 5 x^{2} - 5) \frac{d}{d x} [3 x^{3} + 5 x^{2} - 5])$

Step 3

Differentiate.

Tap for more steps...

Step 3.1

By the Sum Rule, the derivative of $3 x^{3} + 5 x^{2} - 5$ with respect to $x$ is $\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [5 x^{2}] + \frac{d}{d x} [- 5]$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (\frac{d}{d x} [3 x^{3}] + \frac{d}{d x} [5 x^{2}] + \frac{d}{d x} [- 5])$

Step 3.2

Since $3$ is constant with respect to $x$ , the derivative of $3 x^{3}$ with respect to $x$ is $3 \frac{d}{d x} [x^{3}]$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (3 \frac{d}{d x} [x^{3}] + \frac{d}{d x} [5 x^{2}] + \frac{d}{d x} [- 5])$

Step 3.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (3 (3 x^{2}) + \frac{d}{d x} [5 x^{2}] + \frac{d}{d x} [- 5])$

Step 3.4

Multiply $3$ by $3$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (9 x^{2} + \frac{d}{d x} [5 x^{2}] + \frac{d}{d x} [- 5])$

Step 3.5

Since $5$ is constant with respect to $x$ , the derivative of $5 x^{2}$ with respect to $x$ is $5 \frac{d}{d x} [x^{2}]$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (9 x^{2} + 5 \frac{d}{d x} [x^{2}] + \frac{d}{d x} [- 5])$

Step 3.6

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 2$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (9 x^{2} + 5 (2 x) + \frac{d}{d x} [- 5])$

Step 3.7

Multiply $2$ by $5$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (9 x^{2} + 10 x + \frac{d}{d x} [- 5])$

Step 3.8

Since $- 5$ is constant with respect to $x$ , the derivative of $- 5$ with respect to $x$ is $0$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (9 x^{2} + 10 x + 0)$

Step 3.9

Add $9 x^{2} + 10 x$ and $0$ .

$2 \cos (3 x^{3} + 5 x^{2} - 5) (9 x^{2} + 10 x)$